Global Patent Index - EP 1256602 A1

EP 1256602 A1 2002-11-13 - Dichroic mixture

Title (en)

Dichroic mixture

Title (de)

Dichroitische Mischung

Title (fr)

Mélange dichroique

Publication

EP 1256602 A1 (EN)

Application

EP 01810445 A

Priority

EP 01810445 A

Abstract (en)

A mesogenic, crosslinkable mixture comprising at least one polymerisable liquid crystal and at least one polymerisable dichroic dye of the general formula I: <CHEM> wherein A represents a dichroic residue exhibiting at least partial absorption in the visible region > 400 nm; n1, n2, n3, n4 signifies 0 or 1 whereby the sum of n1, n2, n3 and n4 is >0, and B<1> to B<4> represent a group of substructure II <CHEM> wherein the broken line symbolises the linkage to said dichroic residue.

IPC 1-7 (main, further and additional classification)

C09B 69/10; C09K 19/38; G02B 5/30

IPC 8 full level (invention and additional information)

G02F 1/13 (2006.01); C09B 1/22 (2006.01); C09B 1/26 (2006.01); C09B 43/20 (2006.01); C09B 69/10 (2006.01); C09K 19/38 (2006.01); C09K 19/60 (2006.01); G02B 5/30 (2006.01)

CPC (invention and additional information)

C09K 19/38 (2013.01); C09B 69/101 (2013.01); C09B 69/106 (2013.01); C09K 19/60 (2013.01); G02B 5/3016 (2013.01); Y10T 428/10 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

EP 1256602 A1 20021113; AT 402226 T 20080815; AU 2002224717 A1 20021118; CN 100556959 C 20091104; CN 1507478 A 20040623; DE 60227797 D1 20080904; EP 1385914 A1 20040204; EP 1385914 B1 20080723; JP 2004535483 A 20041125; JP 4778192 B2 20110921; KR 100864449 B1 20081029; KR 20040043120 A 20040522; US 2004164272 A1 20040826; US 7419620 B2 20080902; WO 02090447 A1 20021114; WO 02090447 A8 20040129

INPADOC legal status


2004-03-31 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030514

2003-09-04 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2003-07-30 [AKX] PAYMENT OF DESIGNATION FEES

2002-11-13 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-11-13 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI